Instrument for cutting cores from solid substances.



E. B. CANTEY. INSTRUMENT FOR cuTTlNG CORES FROM SOLID SUBSTANCES.

Patented Dec. 7, 1915.

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APPLICATION FlLED OCT. 8. 1915.

coLUMBlA PLANDGRAPH co..wASmNOTON, D. C.

UNITED STATES PATENT OFFICE.

EDWARD B. CANTEY, OF COLUMBIA, SOUTH CAROLINA.

INSTRUMENT FOR CUTTING CORES FROM SOLID SUBSTANOES.

Specification of Letters Patent.

Patented Dec. 7, 1915.

Application filed October 8, 1915. Serial N o. 54,915.

To all whom t may concern e it known that I, EDWARD B. CANTEY, a citizen of the United States, residing at Columbia, in the county of Richland and State of South Carolina, have invented certain new and useful Improvements in Instruments for Cutting Cores from Solid Substances; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and to the figures and letters of reference marked thereon.

This invention relates generally to an improved instrument for cutting cores from solid substances.

'F or convenience in description, and in order to facilitate a clear understanding of the nature and objects of the invention, the following illustration is given of one use to which the novel instrument can be applied: In taking samples from'rosin bar' rels, when they are offered for sale in the market, it has been heretofore necessary to take the head oft' the barrel and remove a considerable portion of the rosin in order to get a satisfactory sample of the contents of the barrel. This results in a considerable waste of rosin, and also in the danger of the head of the barrel, is frequently cloudy and impure, is exposed to the prospective purchaser, even though the rosin farther down in the barrel is perfectly clear and readily salable. By the use of the improved instrument of the present invention, it will not be found necessary to unhead the barrel of rosin at all, in taking samples, Vbut the side of the barrel can be penetrated or tapped by an ordinary auger, the instrument inserted into the hole, and-a core vof rosin cut out and withdrawn by the instrument. s a consequence, the amountV of rosin wasted in taking the sample is very small, and, in addition, it is necessary to remove only the better grade of rosin in the barrel, thereby increasing the probabilities of a sale. y

Alpreferred form of instrument for effecting this result is illustrated in the accompanying drawings, in which igure l is a perspective of an instrument constructed in accordance with the present improvements. Fig. 2 is a longitudinal section taken midway through the same. Fig. 3 is a transverse section taken in a plane indicated by the line i/-g/ of Fig. 2, looking in the direction of the arrow Fig. is a transverse section taken in a plane indicated by the line l`ft of Fig.

rig. 5 is a transverse section on line y-y of F ig. 2 looking in the direction of the arrow 5.

Like characters of reference in the several figures indicate the'same parts.

As shown in the drawings, the instrument includes a core cutting blade which consists of a hollow member or tube formed of inner and outer walls, a, o', and having one end a2 shaped to provide a lateral cutting edge, whereby the tube may be forced into a mass of rosin or other solid substance. Surrounding the tube at its opposite end is a jacket B having an inner flange B, said jacket being preferably constructed 'of heat insulating material in order that the tube may be readily vgrasped by the hand, when cutting the core from the mass of rosin.

eat is applied to the walls of the tube by means of electric wires C extending in the space between the inner and outer walls of the tube and terminating' in heating coils or resistances C located adjacent the lateral cutting edge at the inner end of the tube. The electric wires C may be connected to any suitable source of 'current supply, by means of sockets or'terminals C2 extending through the handle vent the walls of the tube C from becoming electrified, said walls are lined with a suitable non-conducting substance, as indicated at c in Fig. 2 of the drawings.

ySupported by brackets (Z, d attached to the inner wall A of the tube is a shaft or rod D, which rod extends from an opening or slot D located adjacent the flange B of the handle B, to approximately the inner end a2 of the tube. Said rod lies against the inner wall a of the tube and is provided at its end adjacent the lateral cutting edge with a knife blade D2 lying in a plane approximately transverse to the axis of the rod. At its other end, the rod is provided with an angular extension D3, which projects through slot D and forms a handle, whereby the rod may be oscillated through a limited arc, and the knife D shifted from a position against the inner wall of the tube, as shown in full lines in Fig. 3, to a position wherein the tip of the Ilt) in the central axis blade lies approximately Vdotted lines in of the tube, as shown in Fig. 3.

ifounted on rod e is a plunger E having a side opening E', whereby the plunger may slide along the rod D. Rod e is supported in a recess plug e2 which closes the end of the tube adjacent handle B and extends outwardly through said plug to a push button E3. Surrounding the rod c and seating in the recess of the plug E2 is a spring e which xerts pressure on the inner face of push button E3 in a direction to force the plunger out vof the tube, the outward movement of they plunger being limited Vby the plug E2. Y

ln operation, a hole is first bored in the side of abarrel of rosin, for example, by an ordinary auger, and the walls of the tube are heated by connecting the soclrets C2 with any suitable source of current supply. Heating the wallsmelts the rosin along the line of cut, and facilitates forcing the tube into 'the mass of rosin in the barrel, which is done by simply grasping the handle B fthe tube and pushing it in the hole bored by the auger. I hen the instrument has been pushed in the material the required distance to cut the side walls of a core of the desired length, the handle l 3 is shifted to extend the lrnife blade D into the cutting position previously described. rl`hen, by giving the tube a turn the knife blade D cuts off the inner end of the core. lll/'hen the instrument is withdrawn from the bar rel the core ofV rosin is within the tube A. andv may be readily removed therefrom by shifting the lrnife blade D baclr to its Vnormal position against the inner wall of the tube and pushing in the plunger E to force out the coreof rosin. The heated walls of the tube soften or melt the outer portion of the core of rosin and assist the plunger in forcing the core out of the tube. By the operation of the improved instrument, the sampling of barrels of rosin and other substances may be effected with considerable rapidity and with a minimum waste of material. The instrument is particularly advantageous for sampling barrels of rosin, in that it is not necessary to unhead the barrel and expose to the prospective purchaser the cloudy and impure rosin which is generally found in the upper portion of the barrel near the head. nly the clear rosin is exposed to the prospective purchaser,-a commercial factor of considerable importance.

VJ hat is claimed is: f

l. An instrument for cutting cores from solid substances, including, in combination, a core cutting lade adapted to be forced into the substance, a second blade lying normally against the inner wall of the core cutting blade, and means for extending said second blade into position with its tip lyingl approximately in the central axis of the core cutting blade, whereby a rotary movement of the second blade is effective to cut off the inner end of the core.

in instrument for cutting cores from solid substances, including, in combination, a core cutting blade adapted to be forced into the substance, means for heating sai blade to assist in forcing it in, and another blade located adjacent the operative end of the core cutting blade and operable to cut olf he inner end of the core.

in instrument for cutting coreskfrom solid substances, including, in combination, a core cutting blade adapted to be forced into the substance, a second blade lying normaly against the inner wall of the core cutting blade, means for extending saidsecond blade into position with its tip lying approximately in the central axis of the core cutting blade, whereby a rotary movement of the second blade is effective to cut off the inner end of the core, and means for heating the core cutting blade to assist in forcing it in.

el. An instrument for cutting cores from solid substances, including, in combination, a hollow member adapted to be forced into the substance and to cut the side walls of the core, electric heating Wires extending parallel with the side wallsrof the hollow7 member, and a blade located adjacent the operative end of the hollow member and operable to cut off the innerend of the core and permit its removal from the main body of the substance.

5. An instrument for cutting cores from solid substances, including, in combination, a hollow member adapted to be forced into the substance and to out the side walls of the core, electric heating wires extending parallel with the side walls of the hollow member, a blade lying normally against the inner walls of the core cutting blade, and means for extending said blade` into position with its tip lying approximately in the central axis of the hollow member, whereby a rotary movement of the hollow member is effective to also rotate the blade and cut od' the inner end of the core.

G. An instrument for cutting cores from solid substances, including, in combination, a hollow member adapted to be forced into the substance and to cut the side walls o the core, electrical heating wires extending parallel with the side walls of the hollow member, a blade located adjacent the operative end of the hollow member and operable to out off' the innerend of the core and permit its removal from the main body of the substance, and a plunger for ejecting the core from the hollow member.

7. An instrument for cutting cores from solidsubstances, including, in combination,-

a hollow member adapted to be forced into the substance and to cut the side walls of the core, electrical heating wires extending parallel with the side walls of the hollow member, a blade located adjacent the operative end ofthe hollow member and operable to cut olf the inner end of the core and permit its removal from the main body of the substance, a plunger for ejecting the core from the hollow member, a spring exerting pressure to force the plunger normally out of the hollow member, and means for limiting the outward movement of said plunger.

8. An instrument for cutting cores from solid substances, including, in combination, a tube having a lateral cutting edge at one end thereof whereby it is adapted to be forced into the substance and cut the side walls of the core, a blade lying normally against the inner wall of the tube, and means for extending said blade into position with its tip lying approximately in the central axis of the tube, whereby a rotary movement of the blade is effective to cut off the inner end of the core.

9. An instrument for cutting cores from solid substances, including, in combination, a tube having inner and outer spaced walls and a. lateral cutting edge at one end thereof, whereby the tube is adapted to be forced into the substance and out the side walls of the core, electric heating wires in the space between the inner and outer walls of the tube, and a blade located adjacent the lateral cutting edge of the tube and operable to cut off the inner end of the core.

10. An instrument for cutting cores from solid substances, including, in combination, a tube having inner and outer spaced walls and a lateral cutting edge at one end thereof, whereby the tube is adapted to be forced into the substance and cut the side walls of lthe core, electric heating wires in the space between the inner and outer walls of the tube, a blade located adjacent the lateral cutting edge of the tube and operable to cut off the inner end of the core and permit its withdrawal from the main body of the substance, and a plunger for ejecting the core from the tube.

ll. An instrument for cutting cores from solid substances, including, in combination, a tube having inner and outer spaced walls and a lateral cutting edge at one end thereof whereby the tube is adapted to be forced into the substance and cut the side walls of the core, electric heating wires in the space between the inner and outer walls of the tube, a blade lying normally against the inner wall of the tube, and means for extending said blade into position with its tip lying approximately in the central axis of the tube, whereby a rotary movement of the blade is effective to out off the inner end of the core.

l2. An instrument for cutting cores from solid substances, including, in combination, a tube having inner and outer spaced walls and a lateral cutting edge at one end thereof, whereby the tube is adapted to be forced into the substance and cut the side walls of the core, electric heating wires in the space between the inner and outer walls of the tube, a blade lying normally against the inner wall of the tube, means for extending said blade into position with its tip lying approximately in the central axis of the tube, whereby a rotary movement of the blade is effective to cut olf the inner end of the core and permit its withdrawal from the main body of the substance, a plungerl for ejecting the core from the tube, a spring exerting pressure to force the plunger normally out of the tube, and means for limiting the outward movement of the plunger.

EDXVARD B. CANTEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, I). C. 

